Recently upgraded my FX Verminator with a longer barrel to give me some more fpe. Before I was getting between 20 to 22.5 fpe with the 12" barrel and now with the new 19" barrel its 27 to 28 fpe. This extra fpe should work real well for shooting hp pellets and getting good expansion. The other thing I won't have to worry about is running out of shots per fill. The 400cc tanks gets just over a 100 shots per fill on high power. Here are few squirrels I connected on hunting. The ShotTrak camera only films at 5x so no close ups. Saw about 12 squirrels this hunt but these were the only ones that slowed down enough to get a shot off on. Bill
https://www.youtube.com/watch?v=YW8oFiLRFUY&feature=youtu.be&ab_channel=GunPowder%26AirPower
https://www.youtube.com/watch?v=YW8oFiLRFUY&feature=youtu.be&ab_channel=GunPowder%26AirPower